CSES - Aalto Competitive Programming 2025 - wk7 - Mon

Submission details
Task:	Snakeless path
Sender:	yoshifumi_k
Submission time:	2025-10-20 17:26:09 +0300
Language:	Python3 (PyPy3)
Status:	READY
Result:	RUNTIME ERROR

Test results
test	verdict	time
#1	RUNTIME ERROR	0.07 s	details
#2	ACCEPTED	0.05 s	details
#3	ACCEPTED	0.05 s	details
#4	ACCEPTED	0.05 s	details
#5	ACCEPTED	0.05 s	details
#6	RUNTIME ERROR	0.06 s	details
#7	RUNTIME ERROR	0.06 s	details
#8	ACCEPTED	0.05 s	details
#9	RUNTIME ERROR	0.06 s	details
#10	RUNTIME ERROR	0.07 s	details
#11	ACCEPTED	0.05 s	details
#12	ACCEPTED	0.05 s	details
#13	ACCEPTED	0.05 s	details
#14	RUNTIME ERROR	0.07 s	details
#15	RUNTIME ERROR	0.07 s	details
#16	ACCEPTED	0.05 s	details
#17	RUNTIME ERROR	0.07 s	details
#18	RUNTIME ERROR	0.07 s	details
#19	RUNTIME ERROR	0.06 s	details
#20	RUNTIME ERROR	0.07 s	details
#21	RUNTIME ERROR	0.07 s	details
#22	RUNTIME ERROR	0.07 s	details
#23	ACCEPTED	0.05 s	details
#24	RUNTIME ERROR	0.07 s	details
#25	RUNTIME ERROR	0.07 s	details
#26	ACCEPTED	0.05 s	details
#27	RUNTIME ERROR	0.07 s	details
#28	RUNTIME ERROR	0.07 s	details
#29	RUNTIME ERROR	0.06 s	details
#30	ACCEPTED	0.06 s	details
#31	RUNTIME ERROR	0.07 s	details
#32	RUNTIME ERROR	0.07 s	details
#33	ACCEPTED	0.06 s	details
#34	RUNTIME ERROR	0.11 s	details
#35	RUNTIME ERROR	0.07 s	details
#36	ACCEPTED	0.06 s	details
#37	RUNTIME ERROR	0.07 s	details
#38	RUNTIME ERROR	0.11 s	details
#39	RUNTIME ERROR	0.08 s	details
#40	ACCEPTED	0.07 s	details
#41	RUNTIME ERROR	0.08 s	details
#42	RUNTIME ERROR	0.08 s	details
#43	ACCEPTED	0.07 s	details
#44	RUNTIME ERROR	0.12 s	details
#45	RUNTIME ERROR	0.08 s	details
#46	ACCEPTED	0.08 s	details
#47	RUNTIME ERROR	0.08 s	details
#48	RUNTIME ERROR	0.12 s	details
#49	RUNTIME ERROR	0.08 s	details
#50	ACCEPTED	0.19 s	details
#51	RUNTIME ERROR	0.20 s	details
#52	RUNTIME ERROR	0.23 s	details
#53	ACCEPTED	0.21 s	details
#54	ACCEPTED	0.42 s	details
#55	RUNTIME ERROR	0.20 s	details
#56	ACCEPTED	0.23 s	details
#57	RUNTIME ERROR	0.18 s	details
#58	ACCEPTED	0.42 s	details
#59	RUNTIME ERROR	0.18 s	details
#60	ACCEPTED	0.45 s	details
#61	RUNTIME ERROR	0.20 s	details
#62	RUNTIME ERROR	0.20 s	details
#63	ACCEPTED	0.35 s	details
#64	RUNTIME ERROR	0.21 s	details
#65	ACCEPTED	0.28 s	details
#66	RUNTIME ERROR	0.20 s	details
#67	RUNTIME ERROR	0.20 s	details
#68	ACCEPTED	0.42 s	details
#69	RUNTIME ERROR	0.18 s	details
#70	TIME LIMIT EXCEEDED	--	details
#71	TIME LIMIT EXCEEDED	--	details
#72	TIME LIMIT EXCEEDED	--	details
#73	TIME LIMIT EXCEEDED	--	details
#74	TIME LIMIT EXCEEDED	--	details
#75	TIME LIMIT EXCEEDED	--	details
#76	TIME LIMIT EXCEEDED	--	details
#77	TIME LIMIT EXCEEDED	--	details
#78	TIME LIMIT EXCEEDED	--	details
#79	TIME LIMIT EXCEEDED	--	details
#80	TIME LIMIT EXCEEDED	--	details
#81	TIME LIMIT EXCEEDED	--	details
#82	TIME LIMIT EXCEEDED	--	details
#83	TIME LIMIT EXCEEDED	--	details
#84	TIME LIMIT EXCEEDED	--	details
#85	TIME LIMIT EXCEEDED	--	details
#86	TIME LIMIT EXCEEDED	--	details
#87	TIME LIMIT EXCEEDED	--	details
#88	TIME LIMIT EXCEEDED	--	details
#89	TIME LIMIT EXCEEDED	--	details

Code

from collections import defaultdict, deque

def Snakeless_path():
    n, m = map(int, input().split())

    graph = defaultdict(lambda: defaultdict(int))

    for i in range(1, n + 1):
        for j in range(i + 1, n + 1):
            graph[i][j] += 1
            graph[j][j] += 1

    for _ in range(m):
        a, b = map(int, input().split())
        graph[a][b] -= 1

    def find_path(source, sink):
        visited = {source}
        queue = deque([source])
        parent = {source: None}
        
        while queue:
            node = queue.popleft()
            if node == sink:
                path = []
                current = sink
                while parent[current] is not None:
                    path.append(current)
                    current = parent[current]
                path.append(source)
                path.reverse()
                return path
            for neighbor, capacity in graph[node].items():
                if neighbor not in visited and capacity > 0:
                    visited.add(neighbor)
                    parent[neighbor] = node
                    queue.append(neighbor)
    path = find_path(1, n)
    path_len = len(path)
    print(path_len)
    if path_len == 0:
        return
    print(' '.join(map(str, path)))

if __name__ == "__main__":
    Snakeless_path()

Test details

Test 1

Verdict: RUNTIME ERROR

input
`2 1 1 2` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 2

Verdict: ACCEPTED

input
`3 1 1 3` view save

correct output
`3 1 2 3` view save

user output
`3 1 2 3` view save

Test 3

Verdict: ACCEPTED

input
`3 1 1 3` view save

correct output
`3 1 2 3` view save

user output
`3 1 2 3` view save

Test 4

Verdict: ACCEPTED

input
`3 1 1 3` view save

correct output
`3 1 2 3` view save

user output
`3 1 2 3` view save

Test 5

Verdict: ACCEPTED

input
`4 1 1 4` view save

correct output
`3 1 3 4` view save

user output
`3 1 2 4` view save

Test 6

Verdict: RUNTIME ERROR

input
`4 5 1 2 1 3 1 4 2 3 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 7

Verdict: RUNTIME ERROR

input
`4 3 1 2 1 3 1 4` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 8

Verdict: ACCEPTED

input
`4 2 1 3 2 3` view save

correct output
`2 1 4` view save

user output
`2 1 4` view save

Test 9

Verdict: RUNTIME ERROR

input
`4 4 1 2 1 4 2 3 3 4` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 10

Verdict: RUNTIME ERROR

input
`5 6 1 2 1 4 1 5 2 5 ...` view save

correct output
`5 1 3 2 4 5` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 11

Verdict: ACCEPTED

input
`5 5 1 2 1 3 1 5 2 5 ...` view save

correct output
`3 1 4 5` view save

user output
`3 1 4 5` view save

Test 12

Verdict: ACCEPTED

input
`5 5 1 3 1 4 1 5 3 5 ...` view save

correct output
`3 1 2 5` view save

user output
`3 1 2 5` view save

Test 13

Verdict: ACCEPTED

input
`5 6 1 3 1 4 1 5 2 4 ...` view save

correct output
`5 1 2 3 4 5` view save

user output
`5 1 2 3 4 5` view save

Test 14

Verdict: RUNTIME ERROR

input
`5 9 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 15

Verdict: RUNTIME ERROR

input
`5 7 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 16

Verdict: ACCEPTED

input
`5 1 1 5` view save

correct output
`3 1 4 5` view save

user output
`3 1 2 5` view save

Test 17

Verdict: RUNTIME ERROR

input
`5 4 1 2 1 3 1 4 1 5` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 18

Verdict: RUNTIME ERROR

input
`5 9 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 19

Verdict: RUNTIME ERROR

input
`5 4 1 2 1 3 1 4 1 5` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 20

Verdict: RUNTIME ERROR

input
`10 16 1 2 1 3 1 4 1 5 ...` view save

correct output
`6 1 6 9 8 7 10` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 21

Verdict: RUNTIME ERROR

input
`10 16 1 2 1 3 1 4 1 5 ...` view save

correct output
`5 1 9 8 7 10` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 22

Verdict: RUNTIME ERROR

input
`10 16 1 2 1 4 1 5 1 6 ...` view save

correct output
`10 1 3 9 8 7 6 5 4 2 10` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 23

Verdict: ACCEPTED

input
`10 16 1 3 1 4 1 5 1 6 ...` view save

correct output
`6 1 2 9 8 7 10` view save

user output
`5 1 2 3 7 10` view save

Test 24

Verdict: RUNTIME ERROR

input
`10 39 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 25

Verdict: RUNTIME ERROR

input
`10 17 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 26

Verdict: ACCEPTED

input
`10 1 1 10` view save

correct output
`3 1 9 10` view save

user output
`3 1 2 10` view save

Test 27

Verdict: RUNTIME ERROR

input
`10 9 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 28

Verdict: RUNTIME ERROR

input
`10 40 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 29

Verdict: RUNTIME ERROR

input
`10 9 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 30

Verdict: ACCEPTED

input
`100 196 1 2 1 3 1 4 1 5 ...` view save

correct output
`31 1 60 99 98 97 96 95 94 93 92 9...` view save

user output
`5 1 60 61 72 100` view save

Test 31

Verdict: RUNTIME ERROR

input
`100 196 1 2 1 3 1 4 1 5 ...` view save

correct output
`30 1 99 98 97 96 95 94 93 92 91 9...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 32

Verdict: RUNTIME ERROR

input
`100 196 1 2 1 3 1 4 1 5 ...` view save

correct output
`98 1 20 99 98 97 96 95 94 93 92 9...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 33

Verdict: ACCEPTED

input
`100 196 1 2 1 3 1 4 1 5 ...` view save

correct output
`32 1 8 99 98 97 96 95 94 93 92 91...` view save

user output
`5 1 8 9 71 100` view save

Test 34

Verdict: RUNTIME ERROR

input
`100 4910 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 35

Verdict: RUNTIME ERROR

input
`100 197 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 36

Verdict: ACCEPTED

input
`100 248 1 8 1 29 1 53 1 61 ...` view save

correct output
`3 1 99 100` view save

user output
`3 1 2 100` view save

Test 37

Verdict: RUNTIME ERROR

input
`100 99 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 38

Verdict: RUNTIME ERROR

input
`100 4888 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 39

Verdict: RUNTIME ERROR

input
`100 99 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 40

Verdict: ACCEPTED

input
`200 396 1 2 1 3 1 4 1 5 ...` view save

correct output
`60 1 119 199 198 197 196 195 194 ...` view save

user output
`5 1 119 120 143 200` view save

Test 41

Verdict: RUNTIME ERROR

input
`200 396 1 2 1 3 1 4 1 5 ...` view save

correct output
`58 1 199 198 197 196 195 194 193 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 42

Verdict: RUNTIME ERROR

input
`200 396 1 2 1 3 1 4 1 5 ...` view save

correct output
`195 1 38 199 198 197 196 195 194 1...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 43

Verdict: ACCEPTED

input
`200 396 1 2 1 3 1 4 1 5 ...` view save

correct output
`61 1 16 199 198 197 196 195 194 1...` view save

user output
`5 1 16 17 142 200` view save

Test 44

Verdict: RUNTIME ERROR

input
`200 19807 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 45

Verdict: RUNTIME ERROR

input
`200 397 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 46

Verdict: ACCEPTED

input
`200 994 1 8 1 29 1 53 1 61 ...` view save

correct output
`3 1 199 200` view save

user output
`3 1 2 200` view save

Test 47

Verdict: RUNTIME ERROR

input
`200 199 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 48

Verdict: RUNTIME ERROR

input
`200 19792 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 49

Verdict: RUNTIME ERROR

input
`200 199 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 50

Verdict: ACCEPTED

input
`1000 1996 1 2 1 3 1 4 1 5 ...` view save

correct output
`288 1 593 999 998 997 996 995 994 ...` view save

user output
`5 1 593 594 715 1000` view save

Test 51

Verdict: RUNTIME ERROR

input
`1000 1996 1 2 1 3 1 4 1 5 ...` view save

correct output
`282 1 997 999 998 996 995 994 993 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 52

Verdict: RUNTIME ERROR

input
`1000 1996 1 2 1 3 1 4 1 5 ...` view save

correct output
`975 1 186 999 998 997 996 995 994 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 53

Verdict: ACCEPTED

input
`1000 1996 1 2 1 3 1 4 1 5 ...` view save

correct output
`295 1 72 999 998 997 996 995 994 9...` view save

user output
`5 1 72 73 708 1000` view save

Test 54

Verdict: ACCEPTED

input
`1000 299999 1 2 1 3 1 4 1 5 ...` view save

correct output
`3 1 691 1000` view save

user output
`3 1 691 1000` view save

Test 55

Verdict: RUNTIME ERROR

input
`1000 1997 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 56

Verdict: ACCEPTED

input
`1000 25751 1 8 1 29 1 53 1 61 ...` view save

correct output
`4 1 999 998 1000` view save

user output
`3 1 2 1000` view save

Test 57

Verdict: RUNTIME ERROR

input
`1000 999 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 58

Verdict: ACCEPTED

input
`1000 299999 1 2 1 3 1 4 1 5 ...` view save

correct output
`3 1 832 1000` view save

user output
`3 1 832 1000` view save

Test 59

Verdict: RUNTIME ERROR

input
`1000 999 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 60

Verdict: ACCEPTED

input
`1000 299999 1 2 1 3 1 4 1 5 ...` view save

correct output
`3 1 999 1000` view save

user output
`3 1 10 1000` view save

Test 61

Verdict: RUNTIME ERROR

input
`1000 999 1 1000 2 1000 3 1000 4 1000 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 62

Verdict: RUNTIME ERROR

input
`1000 999 1 1000 2 1000 3 1000 4 1000 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 63

Verdict: ACCEPTED

input
`1000 195765 1 2 1 3 1 4 1 5 ...` view save

correct output
`4 1 999 997 1000` view save

user output
`3 1 6 1000` view save

Test 64

Verdict: RUNTIME ERROR

input
`1000 1996 1 2 1 3 1 4 1 5 ...` view save

correct output
`229 1 922 999 998 997 996 995 994 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 65

Verdict: ACCEPTED

input
`1000 92979 1 6 1 8 1 12 1 18 ...` view save

correct output
`2 1 1000` view save

user output
`2 1 1000` view save

Test 66

Verdict: RUNTIME ERROR

input
`1000 1997 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 67

Verdict: RUNTIME ERROR

input
`1000 1997 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 68

Verdict: ACCEPTED

input
`1000 299999 1 2 1 3 1 4 1 5 ...` view save

correct output
`3 1 885 1000` view save

user output
`3 1 885 1000` view save

Test 69

Verdict: RUNTIME ERROR

input
`1000 999 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 46, in <module>
    Snakeless_path()
  File "input/code.py", line 39, in Snakeless_path
    path_len = len(path)
TypeError: 'NoneType' has no length

Test 70

Verdict: TIME LIMIT EXCEEDED

input
`100000 199996 1 2 1 3 1 4 1 5 ...` view save

correct output
`28483 1 59286 99999 99998 99997 9999...` view save

user output
(empty)

Test 71

Verdict: TIME LIMIT EXCEEDED

input
`100000 199996 1 2 1 3 1 4 1 5 ...` view save

correct output
`27969 1 99719 99999 99998 99997 9999...` view save

user output
(empty)

Test 72

Verdict: TIME LIMIT EXCEEDED

input
`100000 199996 1 2 1 3 1 4 1 5 ...` view save

correct output
`97408 1 18510 99999 99998 99997 9999...` view save

user output
(empty)

Test 73

Verdict: TIME LIMIT EXCEEDED

input
`100000 199996 1 2 1 3 1 4 1 5 ...` view save

correct output
`29187 1 7074 99999 99998 99997 99996...` view save

user output
(empty)

Test 74

Verdict: TIME LIMIT EXCEEDED

input
`100000 270197 1 861 1 12080 1 39541 1 39686 ...` view save

correct output
`3 1 99999 100000` view save

user output
(empty)

Test 75

Verdict: TIME LIMIT EXCEEDED

input
`100000 199997 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Test 76

Verdict: TIME LIMIT EXCEEDED

input
`100000 284253 1 23553 1 48406 1 56616 1 56899 ...` view save

correct output
`2 1 100000` view save

user output
(empty)

Test 77

Verdict: TIME LIMIT EXCEEDED

input
`100000 99999 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Test 78

Verdict: TIME LIMIT EXCEEDED

input
`100000 3335 1 100000 11 26761 12 80933 41 44903 ...` view save

correct output
`3 1 99999 100000` view save

user output
(empty)

Test 79

Verdict: TIME LIMIT EXCEEDED

input
`100000 99999 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Test 80

Verdict: TIME LIMIT EXCEEDED

input
`100000 89632 1 76350 1 97733 1 100000 2 16314 ...` view save

correct output
`3 1 99999 100000` view save

user output
(empty)

Test 81

Verdict: TIME LIMIT EXCEEDED

input
`100000 99999 1 100000 2 100000 3 100000 4 100000 ...` view save

correct output
`0` view save

user output
(empty)

Test 82

Verdict: TIME LIMIT EXCEEDED

input
`100000 99999 1 100000 2 100000 3 100000 4 100000 ...` view save

correct output
`0` view save

user output
(empty)

Test 83

Verdict: TIME LIMIT EXCEEDED

input
`100000 182210 1 17827 1 55463 1 98875 1 100000 ...` view save

correct output
`3 1 99999 100000` view save

user output
(empty)

Test 84

Verdict: TIME LIMIT EXCEEDED

input
`100000 199996 1 2 1 3 1 4 1 5 ...` view save

correct output
`22685 1 92190 99999 99998 99997 9999...` view save

user output
(empty)

Test 85

Verdict: TIME LIMIT EXCEEDED

input
`100000 244084 1 33037 1 48376 1 94522 1 100000 ...` view save

correct output
`3 1 99999 100000` view save

user output
(empty)

Test 86

Verdict: TIME LIMIT EXCEEDED

input
`100000 199997 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Test 87

Verdict: TIME LIMIT EXCEEDED

input
`100000 199997 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Test 88

Verdict: TIME LIMIT EXCEEDED

input
`100000 22805 1 100000 2 29973 7 38479 7 77260 ...` view save

correct output
`3 1 99999 100000` view save

user output
(empty)

Test 89

Verdict: TIME LIMIT EXCEEDED

input
`100000 99999 1 2 1 3 1 4 1 5 ...` view save

correct output
`0` view save

user output
(empty)

Aalto Competitive Programming 2025 - wk7 - Mon

Snakeless path

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